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Subject[PATCH] sysfs: Initialised pci bus legacy_mem field before use
PPC64 is failing to boot the latest mmotm due to an uninitialised pointer in
pci_create_legacy_files(). The surprise is that machines boot at all and it
would appear to affect current mainline as well. This patch fixes the problem.

Signed-off-by: Mel Gorman <mel@csn.ul.ie>
---
drivers/pci/pci-sysfs.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index de29645..9976685 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -655,8 +655,8 @@ void pci_create_legacy_files(struct pci_bus *b)
goto legacy_io_err;

/* Allocated above after the legacy_io struct */
- sysfs_bin_attr_init(b->legacy_mem);
b->legacy_mem = b->legacy_io + 1;
+ sysfs_bin_attr_init(b->legacy_mem);
b->legacy_mem->attr.name = "legacy_mem";
b->legacy_mem->size = 1024*1024;
b->legacy_mem->attr.mode = S_IRUSR | S_IWUSR;

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